Electrical Circuits & Network Theorems: Final Year Project Based On "Automatic Smoke Detector Alarm"

Final Year Project Based On "Automatic Smoke Detector Alarm" | How To Make "Smoke Detector Alarm Circuit"

A Quick Overview Of Smoke Sensors:

- Smoke Detectors Come In Two Different Varieties. Ionization Smoke Detectors And Optical Or Photoelectric Smoke Detectors.

- A Light Source, Such As An Led, And A Light Detector, Such As A Photocell, Make Up Optical Smoke Detectors.

- As Long As Light Shines On The Photocell, It Will Conduct. The Photocell Doesn't Conduct When There Is Smoke Because The Source's Light Is Obscured.

- Two Electrodes And An Ionization Chamber With Ions Are The Components Of Ionization Smoke Detectors. The Ions Travel Freely And The Electrodes Conduct Normally When There Is No Smoke.

- Smoke Causes The Chamber To Fill With Smoke, Which Stops The Ions From Moving. The Electrodes Are No Longer Conducting.

- The Conductivity Conditions May Vary Depending On The Sensor Type And Manufacturer, But The Concept Is The Same.

- A Smoke Detector's Output Can Be Used To Set Up An Alarm System.

- The Mq-2 Gas/smoke Sensor Is The Sensor Utilised In This Research. It Is Sensitive To Flammable Gases Used In Industry, Including Butane, Alcohol, Hydrogen, Smoke, Methane, And Hydrogen.

- Aluminum Oxide (Al2o3) Is Used For Both Of Its Electrodes, While Tin Dioxide (Sno2) Is Used For The Heating Element, Which Also Serves As The Primary Sensing Layer.

Equipment's Required For ""Automatic Smoke Detector Alarm" Circuits:-

Cables and Connectors
Diodes
PCB and Breadboards
LED
Push Buttons
Switch
IC
IC Sockets
Battery
I R Transmitter Receiver
555 Timer IC
Buzzer
Resistors
Capacitors
Transistors

Descriptions:-

- In The Event Of A Fire, The Interior Spaces Of The Building Are Filled With Smoke. This Smoke Cloud Gradually Gets So Thick That It Significantly Reduces Visibility. This Information Can Be Used To Build A Straightforward Smoke Detector Alarm That Can Warn Nearby Households Of A Fire Outbreak.

- Because It Doesn't Use Expensive Smoke Detecting Sensors, The Automatic Smoke Detector Alarm Is Quite Small.

- It Contains Two Infrared Sensors That Continuously Check The Lighting Conditions In The Area Where They Are Mounted.

- If A Fire Starts, Smoke Is Produced And Travels Throughout The Building. The Infrared Sensors' Ability To Detect Smoke Get Obscured After It Enters The Smoke Detector Module.

- The Detector Module Activates A Fire Alarm As A Result. Residents Nearby Can Become Aware Of The Fire And Leave The Area After Hearing This Alarm.

- The Alarm Continues To Ring While There Is Smoke Present And Turns Off Once The Smoke Has Cleared.

- The Opaqueness Attribute Of Smoke Serves As The Organizing Basis For This Endeavour. The Infrared Sensors Are Constantly Visible To One Another In The Absence Of Smoke.

- The Sensor Output Changes As Soon As Smoke Enters The Field Of View And Blocks The Sensor Signal.

- The System Detects This Alteration And Sounds An Alarm To Warn The Nearby Residents Of The Fire Outbreak.

Block Diagram: